- Sports. (in track events) the starting line.
- a straight line drawn across the table behind which the cue balls are placed in beginning a game.
- any of four lines, each near to and parallel with one side of the cushion, that divide the table into a large central panel or section and eight smaller sections or balks lying between these.
- a balk lying inside one of these sections.
- balk(def 11).
Origin of balkline
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018